fix: z/OSMF static definition file processing in v2

[pablocarle]

• Tests for the changes have been added (for bug fixes / features)
• Necessary documentation (if appropriate) have been added / updated
• DCO signoffs have been added to all commits, including this PR

PR type

• Bugfix

Changes proposed in this PR

• Pick from v3 z/OSMF static definition file processing #4113

Does this PR introduce a breaking change?

• Yes
• No

[github-actions]

build 6896 SUCCEEDED.
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/13076128047

[github-actions]

Test workflow 6056 is started.
Running install test: Convenience Pax
The zowe artifact being used by this test workflow: libs-snapshot-local/org/zowe/2.18.1-PR-4164/zowe-2.18.1-pr-4164-6896-20250131155701.pax
Running on machine: zzow10
Result: FAILURE
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/13076242844